The following article is from Daily Mail. Thanks to Mr TSK who shared it via email. It is really a very heartbreaking story and a testimony to the pure love that children have for their parents.

A seven-year-old boy battling brain cancer sacrificed his life to save his mother's by giving her his kidney.
Chen Xiaotian was just five when doctors found a malignant tumour in his brain, months before his mother Zhou Lu, 34, contracted kidney disease.

Despite early signs he would recover, the disease aggressively returned, and he was told he would not reach adulthood.